57
Feeds back flow data to keep a constant flow level
Feeds back temperature data to maintain a constant
temperature by control the fan speed.
Thermistor, thermocoupler
■ PID Target Input Methods
The PID target can be input according to the methods showed in Table 6.6. If more than one
PID targets are input, it will be selected as per the priority.
Ex. When E3-01=9 (PID Target) and E5-00=2 (PID Target), the signal from terminal A1 will be
selected as the PID target.
Table 6.6 PID Target Input Sources
Set E3-01 to 9 (PID target)
Set E3-07 to 9 (PID target)
Set E5-00 to 2 (PID target)
Set b5-17 to 1, and input the PID target to b5-18.
Set bit 1 in Modbus register 000FH to 1 (PID target
input) and input the target to 0006H.
Note: When both terminal A1 and A2 are set to 9 (PID Target), oPE07 fault will be triggered.
■ PID Feedback Input Methods
There are two input methods. The first is to input one feedback signal for normal PID control.
The second is to input two signals to control the deviation in between.
Normal PID Feedback:
Selects the PID feedback signal in the source listed in Table 6.7.
Table 6.7 PID Feedback Sources
Set E3-01 to 8 (PID feedback)
Set E3-07 to 8 (PID feedback)
Set E5-00 to 1 (PID feedback)
Note: When more than one PID feedback input source is assigned, oPE09 fault will be triggered.
■ PID Differential Feedback
Selects the second PID feedback signal used for deviation calculation in Table 6.8. Assigning a
differential feedback input will automatically activate the differential feedback function.
Table 6.8 PID Differential Feedback Sources